It fails to enter hibernate mode It fails to Shutdown It will not boot, or It crashes. These are almost never a symptom of a software fault. There are a number of possible solutions for these issues: 1.Update the drivers for the new hardwareSometimes the drivers are faulty and can create the issues. We always advise this as it can resolve any possible software issues. 2.Move the card to a different slot in your PCThe card will be installed into a particular PCI slot in your PC. Just move it to a different slot and see if the problems are resolved. No other changes are needed (ie drivers do not need to be reinstalled).